The motherboards are already going to be here: Apple's G5 and IBM's PPC970 Blade.
The problem is licensing. You think the Amiga "market" is going to get a new motherboard when you just barely got an old motherboard with no OS? The only new motherboard on the horizon is the Pegasos II which still uses the MPX bus.
As for slapping on a PPC 970 on an A1, give me a freaking break. You may as well port AOS to MOL and run it on IBM's Blade running Linux. Seriously :roll: